Product Description
A double hook torsion spring is a type of torsion spring that features two hooks or loops at its ends. Torsion springs are designed to work by twisting around an axis. When force is applied to twist the spring, it stores potential energy and exerts a resisting torque. In the case of a double hook torsion spring, the two hooks provide attachment points for connecting the spring within a mechanical assembly or device. These hooks can be used to anchor the spring in place and allow it to function in applications where rotational force or torque is needed. For example, double hook torsion springs can be found in various industries and products such as in automotive suspension systems, furniture hinges, mechanical toys, and industrial machinery where they help with opening and closing actions, providing tension or torque, or maintaining a certain position or alignment. The design and specifications of a double hook torsion spring, including its wire diameter, coil diameter, number of coils, and the material it's made from, determine its performance characteristics like the amount of torque it can handle, its durability, and its fatigue life.
Product Description
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raw materials we
process on |
stainless steel,Music wire Carbon steel(SWC),Alloy steel SEA9260/9254/6150/SUP9/SUP10/SUP12,51CrV4,etc. |
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material diameter or thickness |
0.1~8mm |
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workcraft or process |
CNC processing, mannual work |
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surface treatment |
painting, electroplating, polishing , blacken etc |
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Applications |
Industrial facilities.automobiles, Motorcycles, electronics, Sports facilities, telecommunications products etc |
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Quality Certification |
ISO9001-2000,ISO14000 |
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Payment term |
T/T,L/C |
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Packing |
plastic bags,and then cartons , wooden or plastic |
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Shipment |
By sea from Ningbo or shanghai, by air from Shanghai or Hangzhou |
1. **Material**: Usually made from high-grade steel or sometimes stainless steel for corrosion resistance.
2. **Wire Diameter**: Typically ranges from 0.1 mm to 10 mm, depending on the size and strength required.
3. **Outer Diameter (OD)**: Varies based on the specific design and application, can range widely.
4. **Coil Diameter**: The diameter of the coil itself, which affects the spring's flexibility and compression characteristics.
5. **Free Length**: The length of the spring when it is not under any load.
6. **Active Coils**: The number of coils that contribute to the spring's elastic properties.
7. **Load or Force Rating**: The amount of force the spring can exert when compressed or extended. This is typically specified in Newtons (N) or pounds-force (lbf).
8. **Spring Rate (or Rate)**: The amount of force required to compress the spring a certain distance (N/mm or lbf/in).
9. **Surface Finish**: Sometimes specified for cosmetic or functional reasons, especially in applications where the spring is visible or needs to resist corrosion.
10. **End Types**: Whether the ends are closed and ground, open, or have specific hooks or loops for attachment.
11. **Application**: Brief description of the intended use or industry standards it needs to meet (if applicable).
These specifications can vary widely depending on the specific design requirements and the manufacturer's capabilities.
Our production
Managing the production of ramp springs involves several key steps to ensure efficiency, quality, and consistency in manufacturing. Here's a general outline of how to manage the production of ramp springs:
1. **Design and Engineering Phase:**
- **Design Specifications:** Define the exact specifications of the ramp spring based on the application requirements (e.g., force requirements, dimensions, materials).
- **CAD Modeling:** Create detailed CAD (Computer-Aided Design) models of the ramp spring to visualize its structure and functionality.
2. **Material Selection:**
- Choose appropriate materials based on factors such as mechanical properties, durability, and cost-effectiveness. Common materials for springs include various grades of steel, stainless steel, or specialty alloys.
3. **Manufacturing Process Selection:**
- Determine the manufacturing processes suitable for producing ramp springs. This could involve processes such as:
- **Spring Coiling:** Forming the spring coils to the specified dimensions.
- **Heat Treatment:** Heat treating the springs to achieve desired hardness and spring properties.
- **Surface Treatment:** Applying coatings or finishes for corrosion resistance or aesthetic purposes.
- **Assembly:** If the ramp spring includes additional components or features (e.g., attaching ends, integrating with other parts).
4. **Production Planning:**
- Develop a production plan that includes:
- **Scheduling:** Establishing timelines for each manufacturing step.
- **Resource Allocation:** Allocating machinery, materials, and labor efficiently.
- **Quality Control:** Implementing quality checks at various stages of production to ensure compliance with specifications.
5. **Manufacturing Execution:**
- Execute the production plan, monitoring progress to ensure adherence to schedule and quality standards.
- Conduct regular inspections and quality assurance checks during manufacturing.
6. **Testing and Validation:**
- Test the ramp springs to validate their performance and compliance with design specifications.
- Conduct functional tests to ensure the springs meet required force characteristics and durability.
7. **Packaging and Shipping:**
- Package the ramp springs securely to prevent damage during transit.
- Arrange for shipping or distribution according to customer requirements or inventory management protocols.
8. **Documentation and Traceability:**
- Maintain detailed documentation of production processes, including material certifications, manufacturing records, and quality inspection reports.
- Ensure traceability of each ramp spring produced, including batch or serial numbers where applicable.
9. **Continuous Improvement:**
- Implement feedback loops from manufacturing and testing phases to improve processes and product quality.
- Seek opportunities to optimize production efficiency, reduce costs, and enhance product performance.
10. **Compliance and Standards:**
- Ensure compliance with industry standards and regulations relevant to ramp springs (e.g., ISO standards for springs, environmental regulations).
By following these steps, manufacturers can effectively manage the production of ramp springs, ensuring they meet the required specifications, quality standards, and delivery schedules demanded by customers.
Our quality control
Testing a ramp spring involves evaluating its performance characteristics to ensure it meets the specified requirements for the intended application. Here's a step-by-step outline of how to test a ramp spring:
### 1. Functional Testing:
- **Load Testing:** Apply loads to the ramp spring to measure its force and deflection characteristics. This can be done using specialized equipment such as a spring tester or load cells.
- **Procedure:** Gradually apply loads and measure the corresponding deflection or displacement of the spring. Record the force-deflection curve to analyze the spring's stiffness and load-bearing capacity.
### 2. Durability Testing:
- **Cycle Testing:** Subject the ramp spring to repeated cycles of compression and extension to simulate real-world usage conditions.
- **Procedure:** Use a fatigue testing machine to cycle the spring through its specified range of motion (compression and extension cycles). Monitor the spring for signs of fatigue, such as loss of load-bearing capacity or deformation over time.
### 3. Material and Mechanical Properties Testing:
- **Material Analysis:** Perform tests to verify the material properties of the spring material (e.g., tensile strength, yield strength, hardness).
- **Procedure:** Use standard testing methods such as tensile testing to determine the material's mechanical properties.
### 4. Environmental Testing:
- **Corrosion Resistance Testing:** If applicable, test the spring for resistance to corrosion or environmental factors.
- **Procedure:** Expose the spring to corrosive environments (e.g., salt spray test) and assess its performance over time.
### 5. Dimensional and Visual Inspection:
- **Dimensional Checks:** Measure critical dimensions of the spring to ensure they meet the specified tolerances.
- **Visual Inspection:** Inspect the spring for any visible defects such as cracks, surface imperfections, or signs of wear.
### 6. Compliance Testing:
- **Standards and Specifications:** Ensure the ramp spring complies with relevant industry standards or customer specifications.
- **Documentation:** Keep detailed records of all testing procedures, results, and compliance certifications.
### 7. Custom Testing:
- **Application-Specific Tests:** Depending on the specific application of the ramp spring, conduct additional tests to simulate the actual operating conditions.
- **Example:** If the spring is used in a safety-critical application, perform additional tests to verify its reliability under extreme conditions.
### 8. Calibration of Testing Equipment:
- **Equipment Calibration:** Regularly calibrate testing equipment to ensure accurate and consistent measurement of spring properties.
### 9. Analysis and Reporting:
- **Data Analysis:** Analyze the test results to determine if the ramp spring meets performance requirements.
- **Reporting:** Prepare comprehensive test reports summarizing the testing procedures, results, and any recommendations for improvement.
By following these testing procedures, manufacturers can ensure that ramp springs meet quality standards, perform reliably in their intended applications, and provide customers with confidence in their durability and functionality.
Packaging & Shipping
Applications
- A torsion bar can be used on a vehicle ,absorbs road bumps , cushioning passenger travel. Torsion bar suspensions are used in many modern cars and trucks..
- In many vehicle suspension systems torsion springs are used.
- Can be used in the torsion pendulum.
- They had been used in ancient weapons or some modern toys.
- The balance springs or hair springs are used in mechanical watches
- Torsion balance springs are used in mechanical pointer-type meters
- Tiny torsion springs can be used in electric , like DMD or digital micromirror device chips.
The Industries that Use Torsion Springs
Major original equipment manufacturers (OEMs) that produce products for various industries use compression springs in many of their products.
- Industrial production lines
- Transportation vechiles
- Construction facilities
- Materials handling
- Agriculture machines
- Petrochemical
- Aeronautical
FAQ
1.Is Bosswinn a manufacturer ?
A: We are a manufacturer, the business owner has 2 factories producing springs, machining part, stamping parts
2. When is the delivery time?
A: 10 and 15 days , one month in the peak seasons
3. What is the MOQ?
For the initial order , any quantity ok. For the mass production order, 10000 pcs better.
4. What's your payment method?
: T/T, L/C, Western Unions,
e. How can we confirm the samples?
Free samples are offered,
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